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Theropods with avian characters

I am trying to make up a short list of theropods which have been described
as either having characters in common with avians and not shared by common
or garden theropods, or having characters intermediate between 'non-avian'
theropods and avians (such as the quadrate articulation in _Troodon_)

I have _Troodon_, _Avimimis_ and _Saurornithoides_. Any others?


cnedin@geology.adelaide.edu.au                  nedin@ediacara.org
Many say it was a mistake to come down from the trees, some say
the move out of the oceans was a bad idea. Me, I say the stiffening
of the notochord in the Cambrian was where it all went wrong,
it was all downhill from there.